England reported 508 deaths, Scotland three, Wales 45 and Northern Ireland 17 to bring the number of UK hospitals to 573.
This number is a huge jump from previous Sundays when 448 were recorded on January 3 and 301 on December 27.
Today’s death toll is the biggest increase on Sunday since May 3, when 358 deaths were recorded.
The grim figure means the total number of hospital deaths now stands at 65,972.
The number of people in the UK who have died within 28 days of testing positive for the coronavirus, across all settings, has now exceeded 80,000 after 1,035 more deaths were recorded on Saturday.
The grim number is 80,868, but it is expected to rise when Sunday’s numbers are released later today.
The government science advisory group SAGE has found that the UK’s R rate has risen to between 1.0 and 1.4, after households shuffled over Christmas.
From Monday, anyone unable to work from home will now be offered a Covid test before going to work.
The plan is to identify one in three carriers who unknowingly have the disease and remove them from the circulation.
Community testing will be rolled out to all 317 local authorities across the country to regularly check people without symptoms.
The news comes as Matt Hancock has promised every adult in the UK will be offered a Covid-19 vaccine by the fall.
The Health Secretary said more than 200,000 vaccines per day are administered in the UK and the country is on track to deliver 2 million vaccines per week.
He told the BBC’s Andrew Marr on Sunday: “The good news is that in the last week we have vaccinated more people than in the whole month of December. ”
But he admitted that to be effective, the vaccines would need to be given to people in their 40s and 50s as well as patients with the highest priority.
Asked if the UK would be able to vaccinate everyone by the fall, Mr Hancock replied: ‘Yes’.
He added, “Every adult will be offered a vaccine by the fall, absolutely. I totally agree that this is very, very important.
“Of course you have to do it on an as needed basis because someone in a nursing home is much, much more likely to die if they get coronavirus than someone like me in their 40s. vaccine to everyone.
“We have over 350 million doses on order, not all of them are there yet and we are deploying them as quickly as they are delivered.
“But we’re going to have enough to give anyone over 18 one this fall. ”
And Mr Hancock said the government was on track to meet its target of 13 million people vaccinated by mid-February.
England’s chief medical officer has warned the NHS faces the “most dangerous situation” in living memory as the pandemic is causing record deaths and hospitalizations.
Chris Whitty said the only way to avoid preventable deaths is for the public to stay at home whenever possible.
He also faces a new government campaign that strongly warns the public that if they leave their homes “people will die”.
The new TV ad prompts people to stay home and ‘pretend you have it’.